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Old 01-24-2013, 07:10 PM   #1
Registered User
Join Date: Feb 2012
Location: N. Las Vegas, NV
Posts: 1,705
My Ride: 03 BMW 330i
Cold engine misfires in three cylinders

Everyday I continue to get three cylinder misfires. It is always three cylinders. Today it was cylinder 1, 2, 3. Yesterday the misfires were 2, 4, 6. The day before it was 2, 4, 5 and so on. This has been going on for over a month now. Before it would be one random cylinder misfire but the problem has gotten worse. The wife drive the car daily and it is driving her nuts and I get to hear about almost daily. The car has 143K miles on it and these are the things that have been replaced in the last ten months:

Fuel Pump
Fuel Filter
Throttle Body
Exhaust CPS
Spark Plugs
Valve Cover
Valve Cover Gasket
All 6 Ignition Coils
Cleaned ICV several times
Clean MAF several times
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